Window-sash balance.



A. E. LEHMANN.

WINDOW SASH BALANCE.

APPLIUATION rum) Dno.1s, 1911.

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2 BHBETB-BHEBT 1.4

Patented Apr.22,11913.

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Wij/ks'.

RAPII :0..WASMINOTON D C A. E. LEHMANN.

WINDOW SASH BALANCE. APPLIoATIoN FILED Dm. 1s, 1911.

Patented Apr.22,11913.

2 SHEBTS-BHEET Z.

llllllllll lll llvxl I I l COLUMBIA PLANOGRAPH C0.. WASHINONN, D. C.

UNiTEDsTATEsrATENr OFFICE.

ARTHUR 1R; vLRHMnivNQ or 1st,; CHARLES, MIssoURL1 AssIeNoR lor :ONE-HALF 1ro 1 1 t t RRIcIr` mnrsrNER; or; sr; 1 cHARLRs; MrssoURr11 wINznowrsAsrL BALANCE; 1

Specification of Letters Patent; j

Apncauon sled December 1a, 1911. serial No. 666,424.: 1

Patented Apr. 22, 1913.1

` Toell whom it may concern.' 1

Beit known that I, ARTHUR 1E. LEHMAN, a citizen of the UnitedStates, and resident of St.1Charles, St. Charles county,1Missouri,

have invented certain new `and useful 1 Improvements 1n Window-Sash Balances, of` which the followingls a `specification con-` taining a full, clear, andexactdescription,

reference being1 `had to` the4 accompanying 1 drawings, forming a parthereof.

i My invention relatesito" improvements in" window sash balances, and i the lob] ect of my 1 invention 1s tot construct an improved "sash balancing mechanism in;` such manner 1as1 to dispense weights and the attendant hollow jamb.`

vention consists 1 certain `novel features with 1 the ordinary y balancing1 of construction andarrangement; of parts `as will be hereinafter more fully described,

pointed out in theclairns and lillustrated :by 1

the accompanying drawingsVin which#- t Figure 1 is a; sectionall plan of la portion of a sash and a portion of a jambequi] oped` with my limproved sash balance and llock; F1g.1211san inside face elevation of a sash with parts broken away tol illustrate `the mechanism embodying 1my invention;` `Figi 3 is an outsideelevation ofthe lower portion ofa sash and Ijambe, certain portions being broken away; and Fig.` 4 is an end elevation of the lower portions of a sash `and a pair;

of stops;` Fig.` 5 j is 1a isectiolnal elevation illustratingthe means whereby` thesash is locked and1Fig.1isanrtinsde facetviewi illustrating the handhold 1andloclzing lever. 1

Referring by numerals to theaccompany` ing drawings:` 1 1 designate the t jambs of the window framea 2 designates the `window stops arrangedin pairs on the face of1each;

jamb, each inside t stopi carrying a rack 13. 4 designates `the bottom raill of the window sash and 5-5 the stiles of the window sash;`

6 designates la horizontal borewhich eX-z tends through the bottom rail land through the stiles of lthe sash and 7"designates1an opening extended transversely through 1 the i central portion `of the bottom rail. 1

8 designates :housings secured `in1 countersinks `formed lin ther outsider faces lof :the Stiles,` and formed integral with said housings are ther bearings `9 and reduced` and threaded extensions 10, the lthreadsonzthe two extensions being opposed to i each? other,`

one being a `right hand thread and theother a left hand thread, the housings being secured against rotationtby means of screws 11.

12 deslgnates a sectional shaft which ieX- tends through the bore 6 and ismountedor 1 `rotationin the bearingsf). y

tate with the sectional shaftf 12 l at each of Secured lto ro-1 its ends is; a1 pinion zlymeshing` with `the racks 1 y i y 14 designates 1 a plate arranged to :be se` cured ion the outside `face of the bottom rail bearing 15 lis acap 16. 1

17 designates anescutcheon which` seto serve as a closure for theiopening; and secured to and preferably` formed `integral `therewith is a bearing; 15, and securedzto the;

cured to theinside face of theibottom` lrail and arranged to close the openingr'.` Car-w riedby andipreferablyformed integral with a means `to manipulate the sash 1 19 designates `a sleeve which embraces the the i escutcheon is a hand-hold 318 serving as 1 sectional shaft `12 iat `the t centraL portionl of 1 thesashll The sleeve is provided with al1-1 nular tcollars 20iwhichare notched at intere lvals as shown at 21 in Figl. l` The sleeve 19 `is secured to rotate, in the bearing, 115 and cap 16, with the sectionalshaft 12 by` means 1 of set screws 21a. At eachiend of the sleeve thereis a threaded extension 22, thetthreads on the two extensions beingopposed to `each other,one beinga right hand thread and the 1 other a sleft hand thread? On the topface ofi the cap 1G there are a l orated ears 23in which is r0-` pair of per tatably mounted a pin 24u/bieb carries the detents 25 y having an integral handle 126 which projects `through the1slot127 formed in the escutcheon immediately above `the `hand-hold 18.

281 designates a 1 coil spring which is wrapped around the in 24 between the ears" 23with` one of its en s resting on top of the cap `16 :and its opposite end 'actingonxthe handle 26 as :required to normally seat the detents 25 in a pair ofthe notches 2110i `the sash balance and lock is as follows: Assum-` t ing the sashtobe down, that is the window closed,I and there being; `a tension; onthe 11011 7* Serve asa'fn'ieans foi-assisting the elet/ation" 2s af y v 1,059,476

springs ysuicient kto rotate.A vthe f loinionsl 13 and Cause them to ride upwardly on the raeksi'an'd oarrythe sash with thern agaizistf the action of gravity Vor the Weightiof the `sash,.the operator depresses the handle 26 `thereby `moving, the detents 1 ont of the* notohesin the sleeve 19 Which permits of a rotation of the sleeve, by the action. of the Springs 29 and 30 thereon, the, Springs. acting `on the sleeve and the `sleeve beingseonred' t9 the, .,Stlonelshaft 12 eachf the pinions.,

'aferettekm saus-ed. t0( rideupwardly 91% the @25k-S f3 .and move 0r Carry the: Sash upwardly.-

. i111. the manner just described the .Springs Qf the :sash andthe (intents, Serv-.e es @means for holdingthe sash in 'anyldesired position again@ the andan .of the springs.. le Som@ Seh in any -sdesined position# semble@ mi@ easily applied to Ordinary Wim barmg .Secured ajat nach. f Side margin 0.5L Winde-W Sasa@ Stenal. shaft mount# In@ SashPbaensingmechansm, a Pair ed for' rotation in. Seid hearings@ Sleeve 01 means .for Cement-ing. .the sleeve *femme :With-the shaft-threaded extensions A formeV on said bearingsand onsaid sleeye a. pair of' fCQl Springs opnestely i wound .relative 15.0' each-1 dthrfzand .10 necting Said ing Screwed t0. Said. @Xtisinsfand le Pinion seired't .the Quin @1.1.41 ef @2l-.0h of theses tiens ef Said.- shaft and. arranged@ ,meshi with said racks.

dO'WS and @Speilly WmsQWs. not; provided .Sleeve with Seid beringssai.. springs. -bs- 2. In a sash balancing meehanisn1,""a,pair

' V"of racks. each secured to a window traine, a

'hearing secured adj aee'nti eac-:h V`iside' margin ofVA the `Window sash;y a 'sectional shaft mount- 1 ed for rotation in said bearings-asleeve for VConnecting the `inner ends of the sections of' said shaft, means-for oonnecting'the sleeve to rotate With the shaft5threadedextensions Vj'orqrned'01,1'.Seid.loeanings and o n'said sleeve,4 a pair of coil springsoppositeiy 'Wou'noiV relaf tive to each othefrand oonneotlng said sleeye with Said bearings ,Seid-- Springs 4being.

screwed to said'eXtensionsy-a pinion secured to the 'outer' end of ea'oh'lof. the sections of said 'shaft' and arranged tomesh with vsaiol racks, and means for' engagement .with said sieeye in KYonderV to hold .fthe sectional shaft and `loinions against rotation, for the vpiir-J 3. In a sashbalanong mhnllsm, a pair 70 y of WindOWSfQnS, a rack segur-ed to eaQhSfO-p, a Windewfsash having a hellowret a Xed.

healing at veaoh end' ofthe hollowl rail, af

fixed bearing nterniediatethe ends of they rail, a Sectionalshff'extends throushlsad lrail, aY sleeve lfoir-nnitiligthe innerl ends lof.

said sections ofshaftysaid sleeve beingsjonrnal-@din Said intermediate bearing, means shaft, .threaded ,extensions carried bythey .,o

so"l extensions formed on said sleeve,1f.Opposiely` l ged hearings at lthe n end of the raihthreadeii Wound coil. springs eaohhaving one of ytheir ends screwed to `rsal fixedheafrirn'gs,at the 'ends f the. rail and at. their' Opposite' `end/S t0..

the threaded .extensions of the. sleeve, pinions fixed te met@ with the. fslectionallshaft and,

mounted rotation .llvsadzied bearings .at the @mi Dif, the Teil1 afreihe fase fermd :0n Said .Sleeve-g and a dos .Carried by the. Sash arranged 'for engagement 'with Said. @what face 11.1 .testim011y-iwhereoff hayelsigngi my name te thssiiesieaton, 111 Piresemi of two. 

